Nicholai Olivia “Nicky” Hilton (born October 5, 1983) is an American businesswoman, fashion model, socialite, celebutante, heiress and fashion designer. She is a great-granddaughter of Conrad Hilton, who was the founder of Hilton Hotels.
Hilton was born in New York City and raised in Los Angeles. She was raised Roman Catholic. Her father, Richard Hilton, works as a businessman. Her mother, Kathy Hilton (née Avanzino), is a former actress. Hilton was named after her great-uncle Conrad Nicholson Hilton Jr. She is the second of four children: she has an older sister, Paris (born 1981), and two younger brothers, Barron Nicholas II (born 1989) and Conrad Hughes Hilton III (born 1994).